Seeing the treasury is common,and anyone can take from it,some people take all the money from it and use it for their own needs,I'd like to suggest the banking system was remade into private treasuries that no one except the player who deposits the money can take from them,more or less like in Fantasy Life.I know this would probably not be necessary in clan/private games,but in public games,people do that.So my suggestion is:Make private treasuries for each player.Thanks for reading.